55136222 has 8 divisors (see below), whose sum is σ = 82741176. Its totient is φ = 27555832.

The previous prime is 55136189. The next prime is 55136227. The reversal of 55136222 is 22263155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 55136191 and 55136200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55136227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1253 + ... + 10575.

It is an arithmetic number, because the mean of its divisors is an integer number (10342647).

Almost surely, 2^55136222 is an apocalyptic number.

55136222 is a deficient number, since it is larger than the sum of its proper divisors (27604954).

55136222 is a wasteful number, since it uses less digits than its factorization.

55136222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12282.

The product of its digits is 3600, while the sum is 26.

The square root of 55136222 is about 7425.3768927914. The cubic root of 55136222 is about 380.6089543703.

Adding to 55136222 its reverse (22263155), we get a palindrome (77399377).

The spelling of 55136222 in words is "fifty-five million, one hundred thirty-six thousand, two hundred twenty-two".